Port Extension Commands to Mac.

chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm

Index: chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm
===================================================================
--- chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm	(revision 151684)
+++ chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm	(working copy)
@@ -398,15 +398,24 @@
   decoration->UpdateVisibility(contents, GURL(toolbar_model_->GetText()));
 }
 
+NSRect LocationBarViewMac::GetPageActionFrame(ExtensionAction* page_action) {
+  PageActionDecoration* decoration = GetPageActionDecoration(page_action);
+  if (!decoration)
+    return NSZeroRect;
+
+  AutocompleteTextFieldCell* cell = [field_ cell];
+  NSRect frame = [cell frameForDecoration:decoration inFrame:[field_ bounds]];
+  DCHECK(!NSIsEmptyRect(frame));
+  return frame;
+}
+
 NSPoint LocationBarViewMac::GetPageActionBubblePoint(
     ExtensionAction* page_action) {
   PageActionDecoration* decoration = GetPageActionDecoration(page_action);
   if (!decoration)
     return NSZeroPoint;
 
-  AutocompleteTextFieldCell* cell = [field_ cell];
-  NSRect frame = [cell frameForDecoration:decoration inFrame:[field_ bounds]];
-  DCHECK(!NSIsEmptyRect(frame));
+  NSRect frame = GetPageActionFrame(page_action);
   if (NSIsEmptyRect(frame))
     return NSZeroPoint;